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Thread: No fuel pump prime...
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08-25-2013, 11:27 AM #21
LTx Guru
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- Apr 2013
- Name
- Fred
- Vehicle
- 1994 Formula - SOLD
- Location
- Central NJ
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- 2,359
Yes, you will get power to the pump to prime the system, then it will shut off if the engine does not start. You could verify by attaching a 12V source to the fuel pump prime connection. That bypasses the PASS-key/PCM permits and the stock fuel pump relay. Then you should have 12V to the tank continuously.
http://shbox.com/1/fuel_pump_prime.jpg
If you have 12V to the connector at the tank, and the pump isn't running, it's either a burned out pump, or the wiring from the connector to the pump. I've seen a couple people recently report problems with the in-tank connector melting at one of the pins.SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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08-25-2013, 11:34 AM #22
LTX Master
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- Offline
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- Sep 2008
- Vehicle
- 1994 Chevy Camaro z28
- Location
- IL
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- 914
Yea, I'll try that prime connector again. I tested it from there already, and all I hear is the relay click. But I will test it again for continued power. HOPEFULLY, its just a bad connection at the pump. Its kinda odd, but one night I pulled the car in the garage from a Cruise-in, the next morning I changed the fuel filter and the car wont start, and the pump wont prime.
94' Z -383 LTx, AI TFS 215cc heads/C/I
S60 rear
Stepped Hedman Hustlers an a Monoblade TB
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